Mechanism for conditioning paper



Sept. l, 1936. l Q A. ME|SEL l 2,053,223

MECHANISM FOR CONDITIONING PAPER- Filed May 29, 1954 2 Sheets-Sheet l a Zig".1

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C. A. MEISEL MECHANISM FOR CONDITIONING PAPER Filed May 2Q, 1954 2 Sheets-Sheet 2 Patented Sept. 1, 1936 1 f l.UNITED STATES PATENT. OFFICE Y l ronzfrrlomdrnrsa Y Charles A. 'MeiseL Milton, Mass., assg'nor` to Meisel Press Manufacturing Company, Boston, Mass., Va corporation of Massachusetts Application May 29,1934, serial No. 728,115

1,2 claims. (o1. en -1t)l This invention vrelates to a mechanism for concurlr given thepaperby such treatment without ditioning paper applicable more particularly tov injuring the gum coating.v the treatment of gummed paper of which the Referring Vto` the drawings, the mechanism gurnmed surface has been broken to remove yoloherein shown 'is' organized about a central stationjectionable curl by action on the gummed face ary shaft'S which may be supported at its ends thereof in the usual manner.v When applied to in the main Vframesl'l (Fig. 2) of the machine. this use the mechanism embodying my invention Fror'nthis shaftf 9 extends in radial positions a permits the paper to be treated to compensate series Vof blades l' 3 over the edgesof which the for the curl given by the gum breaking action and gumrned face of the paper is passed, the paper 0 by contact with the gummed face thereof withweb w being. herein shown as leading from rolls out objectionable' deterioration of the gum coatl5 to loop about'th'e various blades and thence ing. to pass to bedisposed of in any desired manner.

My invention will be well understood'by refer- The path of the paper is bounded outwardly by ence to the following description of the illustrathe chords between the edges of the several blades tive embodiment thereof shown by way of exam- I3. Thus while-not sharply bent across any single ple in the accompanying drawings, whereinz blade, it isbent `slightly across each one and the Fig. 1 is alcngitudinal section of the mechadirection of travel progressively changes so that nism on the line l--l of Fig. 2; l the total effectlis of afolding of the web on itself Fig. 2 is asection on the line 2--2 of Fig. 1;` in the opposite" direction to the curl therein to Fig. 3 is avsection on the line 3--3A of Fig.'1; straighten out this'curl; 20

Fig. 4 is a broken section 'illustrating the breakg For many purposes I have found that the paper ing blade in elevation; is eiciently treated when' it passes directly along Fig. 5 is a'fragmentaryend view of Fig. 4 on the'chords from the edge of one blade to the edge an enlarged scale; Vand of another, but the sharpness of the engagement Figs. 6 and '7 are enlarged sections on the lines of the paper WiththeseveTal blades may be ad- 2'5 6--6and1-1of Fig. 4i respectively. justed by utilizing guide rolls il disposed between In the manufacture of gur'nrned paper, to obadjacent bending blades I3 for depressing the run viate'the curling and cockling which would otherof paperv to paths rwithin the chords. Herein wise arise consequent 'to' the drying of the gu'm these rolls l1 are rotatably mounted in plates i9 coating it is usual minutely to break up that coathaving the `ribs 2| which slide in suitable radial 30' ing' by drawing the paper with the gum side-outways 23VV in end framesr25 supported at the ends ward and at a sharp angle over breaking bars, of shaft 9. The sides of vthese plates I9 are formed there usually being two ofsuch bars disposed sucwith rack-teeth with which gear pinionsv 21 on cessively at'opposite angles tothe length of the pinion shafts 29 journalled in the frames 25 and 3,5*- web. The" tension of the d ried coating on the these shafts carry pinions 3lH (Fig. 3) which mesh 35' paper which 'otherwise would cause itobjectionwith a common central gear 3 3 at the outside of ably to curl is thus released. This treatment, one ofthe frames. This gear may be turned by however, gives a curvature to the paper itself. the pinionteeth o na shaft 3l carrying a worm Thus if a short section 'of aweb treated in this wheel 39driven by worm 4| adapted to be turned 40 manner were'laid on av table'it would not lie flat by anysuit'able means, herein diagrammatically 40 but, with the gum side up, would tend to restv in indicated Aby the showing of a squared end of the bowed positionsupported at its opposite corners. worm shaft in Fig. l'. By rotation of this worm In other words, it has been given a transverse shaft the several rolls l1 are simultaneously and and longitudinal curvature. Since the paper is equally adjusted in' and out. Y usually packaged in rolls, the longitudinal cur- Referring now more particularly to Figs. 4 to 7, 45 vature does not cause difliclty in practice. To rethe effective paper engaging edge of the bending move the transverse curl the paper might be blade I3' consists of a thin, rotatable rod 43 which sharply' bent in 'fthe'Vv opposite direction over a acts to bend the paper without undue sharpness transverse edge but sincesuch an edge contacts and'with little or not scraping action thereon. with the gum coating the latter wo ld be injured'. Forinstance, in practice I have found that a rod 50 The `mechanism` herein shown, which might "ft,- of an inch in diameter is suitable. This rod form' a part of a machine in which the rst deis loosely, vrotatably received in a groove cut lonscribed treatment of the paper by bending it with gitudinally in a bar 45 secured in a suitable groove the gumrnedface cutward was effected, operates -41 in shaft, 9 ,"asbest seen in Fig. 6. To retain 6K efiicientlyfto-remove the objectionable transverse the rod in 'position' against falling out when no 55 paper web is present, the ends may be loosely received in suitable end brackets 49 (Figs. 4 and 5).

To support rod 43 rigidly, yet to permit it t0 turn without scraping action on the gummed face of the paper, it is supported by suitable roller bearings. Herein the bar 45 is provided with the notches 5l at intervals and in these notches are disposed rollers bearings on which rod 43 rests for support in the groove through the tops of the projecting portions between the notches. -This groove may be cut sufiiciently deep to permit the assembly therewith from above of the shaft 55 supporting the rollers 53, which shaftmay be retained by engagement with the end brackets 49. Conveniently the shaft 55 is a dead shaft.

from which the rollers 53 are supported by ball bearings, as seen in Fig. may be in the form of standard ball bearings, their supporting surfaces which contact with the rod 13 being the outer race of such bearings while the inner race ts about the shaft 55. This arrangement is simple and inexpensive and provides sturdy and easily 'turning supports for the rod 43. Any fragments of gum which might be displaced and scraped off from the paper are readily discharged through the notches 5l.

Under pressure of the paper as it passes over the rod 43 the latter is pressed against one of the edge portions of the groove which receives it, and this edge, as seen in Fig. 6, acts thereon in the manner of a doctor blade to discharge therefrom any gum which might otherwise tend to stick thereto and accumulate and cause diiiculty. To facilitate this action and provide a clear path for the paper as in the manner herein described, the sides of the projections between the notches may be relieved or bevelled off as shown at 51 in Fig. 6.

As the rod 43 may be of considerable length the web of paper to be treated, it will be 4subject to a drooping flexure. To retain it between the ends, for example, along the center line of the machine, the construction best shown in Figs. 4 and '7 may be adopted. Here a projection at thisy place is made of somewhat greater depth, separated from the body of the bar and split. Its ends are formed to embrace rod 43 above the centerthereof and they are clamped thereaboutf by means of clamping .screw 59. The shaft 55 likewise passes through the same and the parts are clamped to and held by the shaft 55 and in turn hold the central portion of rod 43. Shaft 55 is end supported by brackets 49 and adjacent the center by overlying .pins v6| in the form of screws passing through adjacent .pro-

jections (see Fig. 4).

I am aware that the invention may be embodied in other specific forms Without departing from the spirit or essential attributes thereof, and I therefore desire the present embodiment to be considered in all respects as illustrative and not restrictive; reference being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

I claim: Y

l. A device of the class described comprising a series of radially disposed blades, guide bars alternating therewith and means for simultaneously adjusting the Aguide bars in and out to bend more or less over said blades a web trained thereabout.

Y2. A device of the class described comprising a series of radially disposed blades, guide bars alternating therewith having substantially radially slidable end supports provided with racks, pinions, gearing with the racks land means in- 6. In fact 'these rollers cluding a single movable gear wheel for simultaneously turning the pinions.

3. A device of the class described comprising a series of radially disposed blades, each rotatably supporting a rod forming the edge thereof, guide rolls alternating therewith and means for adjusting the rolls substantially radially in and out to bend more or less over said rods a web trained thereabout.

4. In a device of the class described -a series of radially disposed blades, each comprising a bar iongitudinally grooved and receiving and rotatably supporting in the groove a thin rod to project as an edge, and means for feeding a paper web as a'l'oo'p .about the series.

5. In a device of the class described a series of radially disposed blades, each rotatably presenting as an edge a thin, cylindrical rod and means for feeding a paper web as a loop about the series.

f6.' A device for the purpose described comprising a bar grooved along its upper edge and receiving loosely in said groove a rod. the bar having transverse notches at intervals and roller bearings received in the notches and underlying the rod to 25 support the same.

7. A device for the purpose described comprising a `bar grooved along its upperl edge and receiving loosely in said groove a rod to rotate under the drag of paper thereover `and means for retaining the rod comprising at the `central portion of the bar shaped jaws formed thereon to embrace the rod above the center line thereof and means for holding the jaws together.

8. A device for the purpose rod above the center line thereof and means for clamping together the divided portions.

9. A device for the purpose described comprising a bar grooved along its upper edge and receiving loosely Vin said groove a rod, the bar having transverse notches at intervals, rolls of relatively great diameter received in the notches and underriding the ro'd; a shaft extending through the bar and ball bearings supporting the rolls from the shaft.

10. A device for the purpose described comprising a bar grooved along its upper edge and loosely receiving a rod to rotate therein, a lmargin of the groove engaging the rod under pressure of a web trained thereover and acting as a doctor blade therefor, the bar having notches at intervals and roller bearings receivedin the notches supporting the rod.`

11. A mechanism for conditioning gummed paper by action on the gummed face thereof. comprising a series of thin, rotatable rods rigidly supported in spaced relation along asubstantial arcand means for training the paper web looped about said rods 4in a path :bounded by the connecting chords.

l2. A mechanism for vconditioning gummed paper by action on the gummed face thereof comprising a series of thin, rotatableA rods rigidly supported in spaced relation along a substantial arc and means for training the paper web looped Vabout said rods in a path bounded by the connecting chords, and means for contacting the paper along the chords to press it inwardly thereof. 

